MCPA & 2,4 D

[YorkshireAndrew]

I'm wanting to spray some permanent pasture with some mcpa & 2,4 d - my agronomist said to use 2 lts of each / ha , would I get decent results at a lower rate?Target weeds are mainly small creeping thistles with odd patches of nettle .

 

[YorkshireAndrew]

I'm still here .

 

[TomB]

To be honest I find that creeping thistles are the worst to kill, I'd be inclined to either go full rate or as your agronomist says. Presumably you paid him for the advice. 24d and mcpa not the dearest of chemicals.

 

[Ben M]

I'm wanting to spray some permanent pasture with some mcpa & 2,4 d - my agronomist said to use 2 lts of each / ha , would I get decent results at a lower rate?Target weeds are mainly small creeping thistles with odd patches of nettle .

Thats what I use to use and them rates. Uwe to work well. Think I use to stick 1 litre of pastor in too

 

[Against_the_grain]

Full rate. whats the point in cutting it? Its not going to break the bank and your risking not controlling all of the target weeds. I would also use at least 150l/ha water rate

 

[dirty harry]

good mix, as said above keep water rate high and works better with some oil added esp on thistles.

its harsh on the grass though (noticeable drop in hay yield) and will only work for this year - they'll be back next year!

I use thistle x @ 0.75lt/ha now, dearer but far superior and seems to clean up grass for at least 2 yrs -big nettles and thistles.

cheers dh.

 

[Brisel]

I now use Thistlex too & boost dock control with Starane if necessary. Don't cut rates - it only leaves you with poor control. Keep water volumes up as suggested above. The higher water volume also helps you travel more slowly in uneven pasture.

 

[YorkshireAndrew]

Thanks all , I'll keep to recommended rates I think & get on with it before it starts raining again .

 

[multi power]

used a lot of mcpa and 24d spot spraying when in nz , mcpa on young thistles, 24d if they had reached flouring, wont knock rye grass much at all, it will wipe out clover n weed grasses

 

[Against_the_grain]

Interesting you say that @dirty harry. Where I have put it on a small area of grass it has really stunted growth

 

[eagleye]

Agronomist always told us that MCPA and 2,4 D were sort of chemicals which needed the full rates and good coveage. We use polo (mix of both) plus torpedo oil to give better control. Agree can check grass.

 

[milkloss]

Can anyone elaborate on the differences and uses for mcpa and 24d?

Looking to knock some docks back in grass that's not long been cut. Loads of clover which I don't want to struggle to re establish. Experience with squire ultra not good so far as I think the docks were well rooted but the correct growth stage: looked very dead but coming back after being cut (if someone could explain why that would also be appreciated as I had a similar issue with spruce and pinnacle in red clover)

 

[multi power]

Can anyone elaborate on the differences and uses for mcpa and 24d?

Looking to knock some docks back in grass that's not long been cut. Loads of clover which I don't want to struggle to re establish. Experience with squire ultra not good so far as I think the docks were well rooted but the correct growth stage: looked very dead but coming back after being cut (if someone could explain why that would also be appreciated as I had a similar issue with spruce and pinnacle in red clover)

Neither will suit what you want
I used both in NZ for spot spraying thistles, mcpa for the small ones at correct stage, 24d if they had flowered

 

[milkloss]

Interesting you say that @dirty harry. Where I have put it on a small area of grass it has really stunted growth

Mcpa made a field of irg take a lay down where I wanted to stall the docks going to seed a bit quick. Grass seemed to lose perhaps 25% of its bulk compared to a 'test strip' I left, on purpose of course

 

[milkloss]

Neither will suit what you want
I used both in NZ for spot spraying thistles, mcpa for the small ones at correct stage, 24d if they had flowered

Any ideas of something that will? And I don't mean something that will cost the earth and not work, I'd rather spend less and do it a few years than try and get clover going again.

 

[multi power]

Any ideas of something that will? And I don't mean something that will cost the earth and not work, I'd rather spend less and do it a few years than try and get clover going again.

Sorry no idea
Unless weed wiper any option

 

[milkloss]

Sorry no idea
Unless weed wiper any option

They'll be too old by the time a weed wiper would do its job.

The reason I was asking 24d vs mcpa was because there is obviously a seed bank there and it will need spraying a few years in a row anyhow.

 

[multi power]

They'll be too old by the time a weed wiper would do its job.

The reason I was asking 24d vs mcpa was because there is obviously a seed bank there and it will need spraying a few years in a row anyhow.

Just seen on another thread 24db is clover safe , I've never heard of the b bit before

 

[Brisel]

2,4 DB is a different chemical to 2,4 D. 2,4 D is not clover safe & probably a bit stronger but has a different weed spectrum to 2,4 DB which is clover safe though it will give it a kicking. I used to have a chart with all the hormone herbicides and their strengths/weaknesses but can't find it now.

 

[spin cycle]

very impressed with thistlex here